Author Topic: Quest for 12ga performance from a 20ga.  (Read 1748 times)

Offline bullethead

  • Poult
  • *
  • Posts: 14
Quest for 12ga performance from a 20ga.
« on: April 26, 2010, 08:44:57 AM »
I wanted to turn my wife's Mossberg Bantam Youth 20ga into a 12ga pattern performer without the crunch on the shoulder. It has a bushnell Holo sight on it so she can be sure she is lined up where she needs to be

I had been loading some 3" shells with #7 Hevi shot and have never really been impressed with the performance in the patterns, although it did well enough to harvest a turkey out to 40yds. I was getting 130 +or- pellets in the 10" at 40yds, but I always wanted more. I had a Carlsons choke and a TightWad choke on hand over the years and each did OK.

A few Saturdays ago I was at the range with my buddy spurhntr( as most of you know him). He had an extra Indian Creek .555 for the Invector threads and I had been brainstorming with Hal(hawglips) over the winter months on some thoughts about Tungsten loads for the 20ga. We clunked heads on components,I shared some powder thoughts, He shared a recipe afterwards and it all boiled down to be a winner.
I loaded up some 1-1/4oz T9 loads to try.

The target is a laser ranged 40yds. calm wind. about 65 degrees


Needless to say I was very happy with the result. It also did quite well, @170 pellets with my old 1.25oz Hevi 7 loads, which was up 40 pellets in the 10" from my other tests.
BUT......My Name is Matt....and I have a problem.....
I KNEW there was more potential there.
I was thinking a more open diameter, with 1-7/16oz of shot might be ideal. I emailed Stuart from Indian Creek, shared some info on what I wanted to do, he offered his thoughts and he said they were running some Invector chokes that week. He sent me a .570 with the Internal wad catchers. We made a swap( another story for another time) and I loaded up some new T9 loads, plus some 1-7/16oz #7 hevi loads with a new wad i wanted to try.
The day was sunny but windy and the temps were 57-60 degrees. I measured out 40yds and set up my target stand.
The first shot is with the 1.43oz load of T9 and the IC.570

I am convinced that choke is the real deal for that load. I also think that on a slightly warmer day and especially with another few inches of barrel that load is a 300 pellet performer. The gun only has an 18.5" barrel on it and it did much better than I ever though it would.

I tried the same load with the IC.555

She could hunt the rest of her life with that combo and be A-OK...........but the .570 is going on Saturday!

I shot the new 1.43oz #7 Hevi load out of the IC.555

218 hits and again I am thrilled.
The same load with the IC.570 put 210 pellets in there but I don't know what happened to the pic.
It seems like the Hevi likes it tighter......Tungsten a bit more open.

The great thing about it is that I can really have her use either choke with either load and it is going to be bad news for a gobbler IF i can get one close enough and if she does her part.

I want to give thanks to Todd, Hal, Stuart and Scott for all their ideas, help and advice.

Offline BD1

  • Boss Tom
  • *****
  • Posts: 1652
  • 400+ 10" Club @ 40 Yards
Re: Quest for 12ga performance from a 20ga.
« Reply #1 on: April 26, 2010, 03:47:48 PM »
Looks Good Matt!!! *up*
« Last Edit: April 26, 2010, 04:13:06 PM by BD1 »
All Taken on Public Land in Northeast Pa.

Offline Porter

  • Osage Polish Mike
  • Administrator
  • Boss Tom
  • **********
  • Posts: 8402
  • Osage Polish Mike
    • Osage Roost
Re: Quest for 12ga performance from a 20ga.
« Reply #2 on: April 28, 2010, 05:53:16 PM »
I have an 870 JR with an 18.5" barrel and I love that gun too.  It's shooting the Federal HW #7's out of it and the IC choke is a non-ported .545...  I'm getting 140 to 150's with that load!

Those patterns are sweet!


Offline bullethead

  • Poult
  • *
  • Posts: 14
Re: Quest for 12ga performance from a 20ga.
« Reply #3 on: April 29, 2010, 09:34:31 PM »
WOW, those are good numbers and a .545 to boot? Did you try them with a more open choke?

Offline Porter

  • Osage Polish Mike
  • Administrator
  • Boss Tom
  • **********
  • Posts: 8402
  • Osage Polish Mike
    • Osage Roost
Re: Quest for 12ga performance from a 20ga.
« Reply #4 on: April 30, 2010, 10:47:30 AM »
WOW, those are good numbers and a .545 to boot? Did you try them with a more open choke?

Yes.  I've tried anywhere from a .572 down to the .545.  That IC choke is beating the Rem SF choke now :)  I worked with Stuart a lot and even tried a .540.  Unless someone has done better, I think the .545 has been shooting the Fed HW #7s the best.  I love these lil 20s!